Phytec i.MX 93 - Audio on Phyboard-Segin

i.MX 93 BSP Manual PD24.1.1 Documentation Rev.: imx8mp-pd22.1.2-51-ga548be7d
target:~$ cansend can0 123#45.67
target:~$ candump can0
To generate random CAN trac for testing purposes, use cangen:
target:~$ cangen
cansend --help and candump --help provide help messages for further information on options and usage.
Device Tree CAN conguration of imx93-phyboard-segin.dts: https://git.phytec.de/linux-imx/tree/arch/
arm64/boot/dts/freescale/imx93-phyboard-segin.dts?h=v6.1.55_2.2.0-phy3#n147 or https://git.phytec.
de/linux-imx/tree/arch/arm64/boot/dts/freescale/imx93-phyboard-nash.dts?h=v6.1.55_2.2.0-phy3#n105
7.14 Audio on phyBOARD-Segin
On phyBOARD-Segin i.MX 93 the TI TLV320AIC3007 audio codec is used. It uses I2S for data transmission
and I2C for codec control. The audio signals available are:
• Stereo LINE IN,
• Stereo LINE OUT,
• Output where D-Class 1W speaker can be connected
To check if your soundcard driver is loaded correctly and what the device is called, type for playback devices:
target:~$ aplay -L
Or type for recording devices:
target:~$ arecord -L
7.14.1 Alsamixer
To inspect the capabilities of your soundcard, call:
target:~$ alsamixer
You should see a lot of options as the audio-IC has many features you can experiment with. It might be
better to open alsamixer via ssh instead of the serial console, as the console graphical eects are better. You
have either mono or stereo gain controls for all mix points. “MM” means the feature is muted (both output,
left & right), which can be toggled by hitting ‘m’. You can also toggle by hitting ‘<’ for left and ‘>’ for
right output. With the tab key, you can switch between controls for playback and recording.
7.14.2 Restore default volumes
There are some default settings stored in /var/lib/alsa/asound.state. You can save your current alsa
settings with:
target:~$ alsactl --file </path/to/filename> store
You can restore saved alsa settings with:
target:~$ alsactl --file </path/to/filename> restore
Accessing Peripherals 66